From: Arunachalam Jaisankar <jsankar@xtra.co.nz>
To: pgsql-sql@postgresql.org
Subject: null foreign key column
Date: Tue, 11 Feb 2003 16:55:28 +1300
Message-ID: <000801c2d181$6c0be360$020000c0@singlarc01> (raw)
Hi all,
I would like to have a foreign key column in my table which allows null value also.
But the below create table sql command doesn't accept null value for person_id.
How to do in postgres?
create table event
(
event_id serial not null,
event_description char(255) ,
person_id serial ,
primary key (event_id),
foreign key (person_id)
references person (person_id)
);
regards
Jai
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To: pgsql-sql@postgresql.org
Cc: jsankar@xtra.co.nz
Subject: Re: null foreign key column
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